Simultaneous measurement of strain and temperature using a high-birefringence fiber loop mirror and an erbium-doped fiber

Jie Shi; Shilin Xiao; He Chen; Min Zhu; Meihua Bi

doi:10.1117/12.888234

3 January 2011 Simultaneous measurement of strain and temperature using a high birefringence fiber loop mirror and an erbium-doped fiber

Jie Shi, Shilin Xiao, He Chen, Min Zhu, Meihua Bi

Author Affiliations +

Proceedings Volume 7990, Optical Sensors and Biophotonics II; 799007 (2011) https://doi.org/10.1117/12.888234
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China

Abstract

A fiber sensor configuration suitable for simultaneous measurement of temperature and strain is investigated. The sensor consists of a high-birefringence fiber loop mirror concatenating with an erbium-doped fiber. The high-birefringence fiber used in the configuration is capsule shaped polarization maintaining fiber, which serves as the sensor element. While the erbium-doped fiber acts as the temperature compensation module. By monitoring the peak power variation and peak wavelength shift, it is feasible to simultaneously measure temperature and strain. The experimental results show that the mean square errors for temperature and stain are 0.35°C and 13.34με, respectively. The proposed sensor configuration shows several merits, including simple in structure, easy fabrication, low cost and high sensitivity.

Citation Download Citation

Jie Shi, Shilin Xiao, He Chen, Min Zhu, and Meihua Bi "Simultaneous measurement of strain and temperature using a high birefringence fiber loop mirror and an erbium-doped fiber", Proc. SPIE 7990, Optical Sensors and Biophotonics II, 799007 (3 January 2011); https://doi.org/10.1117/12.888234

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